L76 puccini \ 



\.l\r id inspires. . Kcidia hypophyllous, on brownish or pur- 

 plish spots, more or less circinate, often on the petioles and 

 then in elongated patches, cup-shaped, minute, with broad 

 recurved born white margin; spores delicately verruculose, 

 pallid-yellow, 17— 28/*.] 



Vredospores. Sori scattered or circinate, minute, often 

 confluent, soon naked, brown ; spores more or less ellipsoid, 

 rarely ovate, faintly echinulate, pale-brown, 22 — 30x18 — 26/*, 

 with two or three germ-pores just above the middle. 



Teleutospores. Sori similar, but long 

 covered by the grey epidermis, black- 

 brown ; spores ellipsoid to oblong, ob- 

 tuse or rounded above, more or less 

 thickened (up to 9 /a), gently constricted, 

 rounded below, smooth, chestnut-brown, 

 38— 66 x 18— 30 /*; with them are 

 intermixed (according to Sydow) ovoid 

 mesospores, much thickened at the 

 Fig. 126. P. Convolvuii. apex, brown, 25 — 35x20 — 26//-; pedi- 



mlTsephlm, PoughCp- cels brownish, thick, persistent, up to 

 sie, U.S.A. 35 yu, long. 



On Convolvulus sepiwm (Miss Jelly). June — October. Very 

 rare. (Fig. 126.) 



The connection of the secidiospores with the teleutospores was experi- 

 mentally demonstrated by Arthur. According to Fischer, the uredospores 

 often have a smooth median equatorial zone, of which I could see no trace. 

 I have not seen the eecidia. 



Distribution : Europe, Africa, Japan, North America. 



49. Puccinia Vincae Berk. 



Uredo Vincae DC. Flor. fr. vi. 70. 



Trichobasis Vincae Berk. ; Cooke, Micr. Fung. p. 226, pi. 6, f. 130—1. 



Puccinia Vincae Berk. Engl. Fl. v. 364. Cooke, Handb. p. 497 ; Micr. 



Fung. p. 205, pi. 6, f. 132. Plowr. Ured. p. 161, pi. 2, f. 11—14 ; 



Card. Chron. 1885, xxiv. 108, f. 22—3. Sacc. Syll. ix. 310. 



Sydow, Monogr. i. 338. Fischer, Ured. Schweiz, p. 167, f. 130. 



Spermogones. Hypophyllous or ' amphigenous, minute, 



